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Altera_Forum's avatar
Altera_Forum
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11 years ago

iniche memory access between hardware and nios cpu

New here and am having a problem with the iniche stack and the simple socket server. When I see a new tcp session initiated to the simple socket server, i write off the contents of that first packet...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

You probably need to use the data cache for normal program accesses to memory - otherwise it will be slower than slow.

Initially just use uncached accesses to the frame buffer area (if you aren't using the mmu, the easiest way to acomplish this is to set the high bit on the addresses).

However you'll probably need to use the data cache flush and invalidate functions/instructions to give reasonable performance when accessing the buffers.